TGS, a leading provider of energy data and intelligence, has successfully completed the Amendment Phase 4 ultra-long offset ocean bottom node (OBN) survey in the Gulf of America. This milestone project covers 49 outer continental shelf (OCS) blocks across the Mississippi Canyon and Ewing Bank protraction areas, delivering high-fidelity seismic data to support exploration and development in one of the world’s most complex deepwater basins. It also provides valuable insight for companies preparing for anticipated lease rounds as early as the second half of 2025.
For the first time in the Gulf of America, TGS deployed its proprietary Gemini enhanced-frequency seismic source in an ultra-long offset acquisition setting. Gemini delivers a unique low-frequency, omnidirectional signal that, combined with advanced processing techniques, significantly improves illumination beneath complex salt bodies. The system offers an environmentally considerate approach to source design while advancing deep imaging capability.
David Hajovsky, executive vice president of multi-client at TGS, said:
'Amendment 4 reflects our continued focus on seismic innovation and operational excellence in the Gulf of America. The successful use of the Gemini low-frequency source in this program marks a step forward in delivering greater subsurface clarity while meeting evolving industry expectations around responsible operations. We’re committed to providing the data quality and insight our clients need to make informed exploration decisions.'
The Amendment 4 early-out product will be available in the third quarter of 2025, with final data delivery expected in the second quarter of 2026. For more information about TGS seismic programs and the Gemini source technology, visit www.tgs.com.
Source: TGS
